HOHHOT - China Rare Earth Prosperity Index, a gauge of the industry's overall performance, rose to 123.55 points this year, up 22.22 percent from last year, a report showed Friday.
A reading above 100 indicates an expansion of the sector while below 100 represents a contraction.
The sub-index of market performance hit 143.55 points, the highest among all the six sub-indices, according to an industry report released by China Economic Information Service and Baotou Rare Earth Products Exchange.
The sub-index of technological innovation stood at 129.03 points, the second highest, showing rare earth companies attaching greater importance to independent intellectual property rights and core technology research and development.
The index is a key part of China Rare Earth Serial Indices which also include China Rare Earth Price Index and China Rare Earth Development Index.